(OBQ11.92)
A 64-year-old male undergoes acetabular revision of his failed total hip arthroplasty using a large uncemented component. Post-operatively he is noted to have a foot drop and radicular pain in the operative extremity. A CT scan of the hip is obtained and reveals screw penetration into the sciatic notch. Where was this screw most likely inserted in the acetabulum?
Review Topic

(OBQ11.5)
In order to determine the boundaries of the posterior-superior safe zone for acetabular screw placement during THA, a line is initially drawn through which of the following two anatomic landmarks, represented by dots on the illustration?Review Topic